Question

URGENT PLEASE
Which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring?

−b b2 − 4ac 2a

Use the part of the quadratic formula that you chose above and find its value given the following quadratic equation:

2x2 + 7x + 3 = 0

Answer 1

b^2-4ac tells that
if b^2-4ac>0, and is a perfect square then the roots can be found out by factoring
in 2x^2=7x+3=0
we have 49-4*2*3=25>0 therefore roots can be found out by factorizing since 25 is aperfect sqre of 5
now 2x^2+7x+3=0
2x^2+6x+x+3=0
2x(x+3)+1(x+3)=0
u get (x+3)(2x+1)=0
x=-1/2,-3